Basanite

Banded iron formation

Basanite and Banded iron formation

Basanite

Banded iron formation

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1 Definition

1.1 Definition

Basanite is a black basaltic rock which mainly contains plagioclase, augite, olivine and nepheline and is formerly used as a touchstone

Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age

1.2 History

1.2.1 Origin

Unknown

Western Australia, Minnesota

1.2.2 Discoverer

Unknown

1.3 Etymology

From Latin basanites + -ite

From its formation process

1.4 Class

Igneous Rocks

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Aphanitic to Porphyritic

Banded, Trellis

2.2 Color

Black, Brown, Green, Grey, Red, White

Red, Reddish Brown

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Glassy or Pearly

Layered, Banded, Veined and Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes

3.1.2 Exterior Uses

As Building Stone, Garden Decoration, Office Buildings

Paving Stone, Office Buildings

3.1.3 Other Architectural Uses

Whetstones

Curbing, Whetstones

3.2 Industry

3.2.1 Construction Industry

Arrowheads, Construction Aggregate, Cutting Tool, Spear Points

As Dimension Stone, Used for flooring, stair treads, borders and window sills.

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Monuments

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

As a touchstone, Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms

As a touchstone, Cemetery Markers, Creating Artwork

4 Types

4.1 Types

Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite

Algoma-type , Lake Superior-type, Superior-type and Taconite

4.2 Features

Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate, Used as a touchstone

Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Data Not Available

Not Applicable

4.3.3 Sculpture

Not Yet Used

4.3.4 Famous Sculptures

Not Applicable

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Not Yet Used

4.4 Fossils

Absent

Present

5 Formation

5.1 Formation

Basanite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.

The banded iron layers are formed in sea water when oxygen is released by photosynthetic cyano-bacteria. The oxygen then combines with dissolved iron in ocean to form insoluble iron oxides, which precipitated out, forming a thin layer of banded iron formation on ocean floor.

5.2 Composition

5.2.1 Mineral Content

Augite, Feldspar, Ilmenite, Olivine, Plagioclase

Hematite, Magnetite, Quartz

5.2.2 Compound Content

Potassium Oxide, Sodium Oxide, Silicon Dioxide

Fe, Iron(III) Oxide, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Chemical Weathering, Mechanical Weathering

Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Coastal Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

75.5-6

1 7

6.1.2 Grain Size

Fine Grained

Large and Coarse Grained

6.1.3 Fracture

Uneven, Splintery or Conchoidal

6.1.4 Streak

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Waxy and Dull

Earthy

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Non-Existent

Imperfect

6.1.9 Toughness

1.5

6.1.10 Specific Gravity

2.5-2.85.0-5.3

0 8.4

6.1.11 Transparency

Translucent to Opaque

6.1.12 Density

2.7 g/cm³Not Available

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.74 kJ/Kg K3.20 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Not Yet Found

China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

7.1.2 Africa

Uganda

Kenya, Morocco, South Africa, Tanzania

7.1.3 Europe

Germany, Hungary, Italy, Spain

Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom

7.1.4 Others

Greenland, Mid-Atlantic Ridge

7.2 Deposits in Western Continents

7.2.1 North America

USA

Canada, Mexico, USA

7.2.2 South America

Bolivia, Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland, South Australia, Western Australia

New South Wales, Queensland, South Australia, Western Australia

All about Basanite and Banded iron formation Properties

Know all about Basanite and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Basanite belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Basanite is Aphanitic to Porphyritic whereas that of Banded iron formation is Banded, Trellis. Basanite appears Glassy or Pearly and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Basanite is waxy and dull while that of Banded iron formation is earthy. Basanite is available in black, brown, green, grey, red, white colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Basanite are as a touchstone, creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.